CVE-2026-56131 – Expat XML_ResumeParser Use-After-Free Vulnerability

CVE ID :CVE-2026-56131

Published : June 19, 2026, 2:56 a.m. | 2 hours, 46 minutes ago

Description :libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

Severity: 4.9 | MEDIUM

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